[pdftex] pdfTeX bug

[Joseph Wright]

On 13/05/2014 14:38, Patrick Gundlach wrote:
> 
> Am 13.05.2014 um 08:28 schrieb Ramón Casares <papa at ramoncasares.com>:
> 
>> Every pdf produced by pdfTeX includes unescaped parenthesis inside a string,
>> specifically in the /PTEX.Fullbanner entry of the info dictionary
>> that is referred to in the pdf trailer.
>> You can see it, for example, in the cover of
>> "The pdfTEX user manual" November 23, 2010 Rev. 655.
>>
>> This means that all of them are not valid.
> 
> 
> why? PDF allows balanced parentheses in a string. If they are not balanced, they should be escaped.
> 
> (see PDF Reference 1.7 "Literal Strings" page 53/54)

Indeed, the demos on page 54 include:

  (Strings may contain balanced parentheses ( ) and
  special characters (*!&}^% and so on).)
-- 
Joseph Wright